You do realize that quarantine rules are pretty strictly defined specifically to prevent civil rights abuses, right?
They are also done during active danger. That's not what you are proposing. You are calling for the neutralization of a group of people who could be a danger but have yet to do so. You can't even call it thought crime because the victims don't even need to have had dangerous thoughts to be neutralized.
Also when does someone hit neutralization threshold. Obviously you consider omega level powers to be above it, but what about someone like Shadowcat. She couldn't harm many people, but the nature of her power makes her a huge intelligence risk to the government. Should she be neutralized? I just want to know when your human rights stop mattering.
Then what about people like Jean Grey when she goes all "Dark Phoenix" on you!! ---
Are you a MexiCAN or a MexiCAN'T - Johnny Depp 'Once Upon A Time in Mexico'